GooFunc.js文件
//获取一个DIV的绝对坐标的功能函数,即使是非绝对定位,一样能获取到
function getElCoordinate(dom) {
var t = dom.offsetTop;
var l = dom.offsetLeft;
dom=dom.offsetParent;
while (dom) {
t = dom.offsetTop;
l = dom.offsetLeft;
dom=dom.offsetParent;
}; return {
top: t,
left: l
};
}
//兼容各种浏览器的,获取鼠标真实位置
function mousePosition(ev){
if(!ev) ev=window.event;
if(ev.pageX || ev.pageY){
return {x:ev.pageX, y:ev.pageY};
}
return {
x:ev.clientX document.documentElement.scrollLeft - document.body.clientLeft,
y:ev.clientY document.documentElement.scrollTop - document.body.clientTop
};
}
//给DATE类添加一个格式化输出字串的方法
Date.prototype.format = function(format)
{
var o = {
"M " : this.getMonth() 1, //month
"d " : this.getDate(), //day
"h " : this.getHours(), //hour
"m " : this.getMinutes(), //minute
"s " : this.getSeconds(), //second ‘
//quarter
"q " : Math.floor((this.getMonth() 3)/3),
"S" : this.getMilliseconds() //millisecond
}
if(/(y )/.test(format)) format=format.replace(RegExp.$1,(this.getFullYear() "").substr(4 - RegExp.$1.length));
for(var k in o)if(new RegExp("(" k ")").test(format))
format = format.replace(RegExp.$1,
RegExp.$1.length==1 ? o[k] :
("00" o[k]).substr(("" o[k]).length));
return format;
}
<pre name="code" class="javascript"><pre name="code" class="javascript"><pre name="code" class="javascript"><pre name="code" class="javascript">GooCombo.JS文件</pre>
<pre></pre>
<pre></pre>
<pre></pre>
<pre name="code" class="javascript">/*下拉框定义--GooCombo类*/
//dom :要被绑定的DOM对象，必须要有其ID或者NAME，且未被JQUERY对象化
//property :JSON变量，SLIDER的详细参数设置
//目前，构造函数可接受用普通DOM容器或者直接传送SELECT控件来进行渲染
function GooCombo(dom,property){
this.$div=null;//渲染完毕后最父框架的DIV
this.$id=null;//this.$div中SELECT控件的ID
this.$name=null;//this.$div中SELECT控件的NAME
this.$width = property.width; //下拉框控件的宽度，必填项
this.$haveIcon=property.haveIcon||false;
this.$input = $("<input type='text' value='" property.text "' " (property.readOnly ? "readonly='readonly'" : "") (this.$haveIcon ? " style='margin-left:20px;width:" (this.$width - 39) "px'" : "") "/>"); //下拉框控件中始终显示的文本框INPUT
this.$btn=$("<div class='btn_up'></div>");//下拉框右部的按钮
this.$data=[];//下拉框控件的所有显示文字和值,二维数组
this.$type="basic";//下拉框控件的运行模式，有basic基本,multiple可多选,filter过滤显示 三种,默认为basic
this.$selectHeight=property.selectHeight||0;
this.$list=$("<ul style='width:" (this.$width-2) "px;height:" property.selectHeight "px;'></ul>");//下拉框的列表JQUERY对象
this.$lastSelect=null;//当前最近一次被选中的单元,在this.$type="multiple"时，它将不发挥其记录作用
this.$select = null; //保存所选值的单元一般为select控件
this.$autoLoad=false;//是否动设置为动态载入数据，既下拉动作触发时再载入数据，默认为FALSE()
this.$alreadyLoad=false;//是否已经载入完了数据,默认为false
//设置为动态自动获取数据(渲染后Combo中的input框被选中后载入数据)
this.setAutoLoad=function(bool){
this.$autoLoad=true;
};
if(property.autoLoad) this.setAutoLoad(property.autoLoad);
this.$ajaxType=null;//，其变量为一个远程链接参数的JSON数组，格式例如：{url:"website/pp.php",type:"POST",para:(与JQUERY中的AJAX方法中传参DATA一样)}默认为空
this.setAjaxType=function(json){
this.$ajaxType.url=json.url;
this.$ajaxType.type=json.type;
this.$ajaxType.para=json.para;
this.$ajaxType.dataType=json.dataType;
};
if (property.ajaxType) this.setAjaxType(property.ajaxType);
//开始构造函数主要内容
if(dom!=null && dom.tagName=="SELECT"){
var temp="";
for(var i=0;i<dom.length;i ){
this.$data[i]=[(dom.options[i].value||dom.options[i].text),dom.options[i].text,""];
temp ="<a href='#'><p " "value='" this.$data[i][0] "'>" this.$data[i][1] "</p></a>";
}
this.$list.append(temp);
this.$id=dom.id;
this.$name=dom.name;
if(dom.multiple) this.$type="multiple";
this.$select=$(dom);
this.$select.wrap("<div class='Combo' id='Combo_" this.$id "'></div>")
this.$div=this.$select.parent(".Combo");
}
else{
this.$div=$(dom);
this.$div.addClass("Combo");
this.$select=$("<select></select>");
this.$div.append(this.$select);
}
//this.$div.before(this.$septum);
this.$div.css({width:this.$width "px"});
this.$div.append("<div class='text' style='width:" (this.$width-19) "px;'></div>").append(this.$btn).append(this.$list);
this.$div.children("div:eq(0)").append("<div class='top_border'></div>").append(this.$input);
//如果DOM为一个SELECT控件，则property中的属性还可以覆盖掉原来的ID，NAME ,type="multple"的默认设置
//ID,NAME,TYPE如果在传入SELECT时就已经通过SELECT来定义，则PROPERTY中可以不用再写
if(property.id) {this.$id=property.id;this.$select.attr("id",property.id);}
if(property.name) {this.$name=property.name;this.$select.attr("name",property.name);}
if(property.type){
this.$type=property.type;
if(property.type=="multiple") {this.$select.attr("size",1);this.$select.attr("multiple",property.type);}
else this.$select.removeAttr("multiple");
}
//载入一组数据的方法
this.loadListData = function (data) {
this.$data = [];
if (this.$list.children("a").length > 0) {
this.$list.empty();
this.$select.empty();
}
temp = "", temp2 = "";
for (i = 0; i < data.length; i) {
this.$data[i] = [data[i][0], data[i][1], data[i][2] || ""];
if (this.$type== "filter")//在这里可以修改你想类型 basic 当鼠标点击进去是否展现初始数据
temp = "<a href='#'><p " (this.$haveIcon ? "style='text-indent:19px;background:" this.$data[i][2] "' " : "") "value='" this.$data[i][0] "'>" this.$data[i][1] "</p></a>";
temp2 = "<option value='" this.$data[i][0] "'>" this.$data[i][1] "</option>";
}
if (this.$type == "filter")
this.$list.append(temp);
this.$select.append(temp2);
this.$alreadyLoad = true;
};
if(property.data) this.loadListData(property.data);
//动态远程载入数据，AJAX请求的参数将读取this.$ajaxType中的设置
this.loadListDataAjax=function(){
var inthis=this;
$.ajax({
type:this.$ajaxType.type,
url:this.$ajaxType.url,
dataType:this.$ajaxType.dataType,
data:this.$ajaxType.para,
success:function(data){
inthis.loadListData(data);
}});
};
//提示文字
$("input[type='text']").each(function () {
if ($(this).val() == property.text) {
$(this).bind("focus", function () {
$(this).val("");
}).blur(function () {
$(this).val(property.text)
});
}
});
//绑定当INPUT框被选中时的事件
this.$input.bind("focus", { inthis: this }, //如果this.$autoLoad或!this.$alreadyLoad有一个为FALSE，则ajaxType将无效，可不传
function (e) {
if (e && e.preventDefault) e.preventDefault(); //阻止默认浏览器动作(W3C)
else window.event.returnValue = false; //IE中阻止函数器默认动作的方式
var inthis = e.data.inthis;
// inthis.$autoLoad = true;
//
//
// inthis.$alreadyLoad = false;
// inthis.$ajaxType = false;
if (!inthis.$alreadyLoad && inthis.$autoLoad) {
if (inthis.$ajaxType) {//如果是远程AJAX获取数据
inthis.loadListDataAjax();
}
else
{
inthis.loadListData(inthis.$data);
}
}
var list = inthis.$list;
var height = inthis.$selectHeight;
var width = inthis.$width;
list.css("display", "block");
$(document).bind("mouseup", function (e) {
var locate = getElCoordinate(list.get(0));
var ev = mousePosition(e);
if (locate.left width < ev.x || locate.left > ev.x || locate.top - 22 > ev.y || locate.top height 2 < ev.y) {
list.css("display", "none");
}
this.onmouseup = null;
return false;
});
return false;
});
//绑定当INPUT框中的内容被改变时的事件
if(!this.$readOnly){
if(this.$type=="filter"){//当type=="filter"时
this.$input.bind("change", { inthis: this }, function (e) {
var inthis = e.data.inthis;
//var text="" this.value;
var text = $.trim(this.value)
var data = inthis.$data;
var temp = "";
if (inthis.$ajaxType) {//如果ajaxType属性有设置，则filter模式下，下拉框控件将在每次change时，动态从获取数据
inthis.$ajaxType.para["search"] = text; //后台需要对REQUEST传入的search变量有一个向前模糊匹配的查询功能
inthis.loadListDataAjax();
}
else {
for (var i = 0; i < data.length; i)
{
if (data[i][1].indexOf(text) == 0)
temp ="<a href='#'><p " (inthis.$haveIcon ? "style='text-indent:19px;background:" data[i][2] "' " : "") "value='" data[i][0] "'>" data[i][1] "</p></a>";
}
inthis.$list.empty();
inthis.$list.append(temp);
}
});
}
else{
this.$input.bind("change", { inthis: this }, function (e) {
var text = this.value;
var inthis = e.data.inthis;
var data = e.data.inthis.$data;
for (var i = 0; i < data.length; i) {
if (data[i][1] == text) {
if (inthis.$lastSelect)
inthis.$lastSelect.removeClass("active");
inthis.$lastSelect = inthis.$list.children("a:eq(" i ")").addClass("active");
now = inthis.$list.children("a:eq(" i ")").children("p");
inthis.$select.val(data[i][0]);
if (inthis.$haveIcon) {
$(this).parent(".text").css({
background: now.css("background"),
"background-image": "url(../images/combo_icon.gif)",
"background-position": now.css("background-position"),
"background-repeat": now.css("background-repeat")
});
}
break;
}
}
});
}
var once=null;
this.$input.bind("keyup", { input: this.$input, list: this.$list }, function (e) {
if (!e) e = window.event;
if (e.keyCode == 13)
e.data.list.css("display", "none");
else if (e.keyCode == 40) {
var temp = e.data.list.children("a:eq(0)");
temp.focus();
temp.toggleClass("focus");
}
else {
//alert("进入keyup");
once = null;
once = setTimeout(function () { e.data.input.change(); }, 500);
}
});
}
//绑定下拉按钮的事件
this.$btn.bind("mousedown",function(){
inthis=$(this);
inthis.removeClass("btn_up");
inthis.addClass("btn_down");
});
this.$btn.bind("mouseup",{input:this.$input},function(e){
inthis=$(this);
inthis.removeClass("btn_down");
inthis.addClass("btn_up");
e.data.input.focus();
});
//选中下拉框中一个指定索引的值（如果是multiple模式，且这个值原来已经被选定，则运行此函数后将会取消该选定）
this.selectValue=function(index){
if(index>0&&index<this.$data.length){
var p=this.$list.children("a:eq(" index ")");
if(this.$lastSelect) this.$lastSelect.removeClass("active");
this.$lastSelect=p;
p.click();
}
};
//绑定下拉列表单元被点击时的事件
this.$list.bind("click",{inthis:this},function(e){
if ( e && e.preventDefault ) e.preventDefault();//阻止默认浏览器动作(W3C)
else window.event.returnValue = false;//IE中阻止函数器默认动作的方式
if(!e) e=window.event;
var clicked=$(e.target);
var inthis=e.data.inthis;
if(clicked.attr("tagName")=="A") clicked=clicked.children("p");
else if(clicked.attr("tagName")=="UL"){
this.style.display="none";
return;
}
if(inthis.$haveIcon){
inthis.$input.parent(".text").css({
background:clicked.css("background"),
"background-image":"url(../images/combo_icon.gif)",
"background-position":clicked.css("background-position"),
"background-repeat":clicked.css("background-repeat")
});
}
if(inthis.$type!="multiple"){
if(inthis.$lastSelect) inthis.$lastSelect.removeClass("active");
inthis.$lastSelect=clicked.parent("a").addClass("active");
this.style.display="none";
inthis.$select.val(clicked.attr("value"));
inthis.$input.val(clicked.text());
}
else{
clicked.parent("a").toggleClass("active");
var optionList=inthis.$select.get(0).options;
for(var i=0;i<optionList.length; i){
if(optionList[i].value==clicked.attr("value")){
optionList[i].selected=!optionList[i].selected;
break;
}
}
inthis.$input.val(clicked.text() " , ……");
}
inthis.$select.change();
//alert(inthis.$select.val());
return false;
});
//绑定当用户用鼠标上/下滑过选择列表内容时的事件
this.$list.bind("mouseover",{list:this.$list},function(e){
if(!e) e=window.event;
var clicked=$(e.target);
if(clicked.attr("tagName")=="P") clicked=clicked.parent("a");
else if(clicked.attr("tagName")=="UL"){
return;
}
clicked.focus();
clicked.addClass("focus");
});
this.$list.bind("mouseout",{list:this.$list},function(e){
if(!e) e=window.event;
var clicked=$(e.target);
if(clicked.attr("tagName")=="P") clicked=clicked.parent("a");
else if(clicked.attr("tagName")=="UL") return;
clicked.removeClass("focus");
});
//绑定当用户用上/下方向键选择列表内容时的事件
this.$list.bind("keydown",{inthis:this},function(e){
if(!e) e=window.event;
var inthis=e.data.inthis;
if(e.keyCode==13){//回车
if ( e && e.preventDefault ) e.preventDefault();//阻止默认浏览器动作(W3C)
else window.event.returnValue = false;//IE中阻止函数器默认动作的方式
var clicked=$(e.target);
if(clicked.attr("tagName")=="P") clicked=clicked.parent("a");
else if(clicked.attr("tagName")=="UL") return;
clicked.focus();
clicked.click();
return false;
}
else if(e.keyCode==40){
var clicked=$(e.target);
if(clicked.attr("tagName")=="P") clicked=clicked.parent("a");
else if(clicked.attr("tagName")=="UL") return;
var now=$(e.target);
var next=$(e.target).next("a:eq(0)");
if(next.length>0){
now.removeClass("focus");
next.addClass("focus");
next.focus();
}
}
else if(e.keyCode==38){
var clicked=$(e.target);
if(clicked.attr("tagName")=="P") clicked=clicked.parent("a");
else if(clicked.attr("tagName")=="UL") return;
var now=$(e.target);
var prev=$(e.target).prev("a");
if(prev.length>0){
now.removeClass("focus");
prev.addClass("focus");
prev.focus();
}
}
});
//返回下拉框的被选值//如果是多选，则会返回一串值构成的字符串，以逗号隔开
//此下拉框也可放在一般的FORM之中，并像普通的SELECT下拉菜单控件一样操作，当FORM提交时，后台可request获取一个被选取值的数组
this.getValue=function(){
return this.$select.val();
};
//绑定当控件中隐藏的SELECT的值变化以后,触发的方法,通过对其设置，可达到drop-on-drop的多个下拉框相互联动功能,参数Fn为要触发执行的函数
this.bindValueChange=function(Fn){
this.$select.bind("change", Fn);
};
//删除一个选择项,index为定位参数，从0开始（即第一行的选择项）
this.delItem=function(index){
if(index>-1&&index<this.$data.length){
this.$data.splice(index,1);
this.$select.get(0).options.remove(index);
this.$list.children("a:eq(" index ")").remove();
}
};
//增加一个选择项，项,index为定位参数，从0开始（即第一行的选择项）
this.addItem=function(index,Item){
if(index=this.$data.length){//如果是加在最末尾
this.$data[index]=Item;
this.$list.append("<a href='#'><p " (this.$haveIcon? "style='text-indent:19px;background:" Item[2] "' " : "") "value='" Item[0] "'>" Item[1] "</p></a>");
}
else{
this.$data.splice(index,0,Item);
this.$list.children("a:eq(" index ")").before("<a href='#'><p " (this.$haveIcon? "style='text-indent:19px;background:" Item[2] "' " : "") "value='" Item[0] "'>" Item[1] "</p></a>");
}
this.$select.get(0).options.add(new Option(Item[1], Item[0]));
};
//清除所有选项
this.clearItems=function(){
this.$data=null;
this.$data=[];
this.$list.empty();
this.$select.get(0).options.length=0;
this.$select.empty();
this.$alreadyLoad=false;
};
}
//将此类的构造函数加入至JQUERY对象中
jQuery.extend({
createGooCombo: function(dom,property) {
return new GooCombo(dom,property);
}
}); </pre><br>
HTML页面:(要先引入jquery 库)<br>
$(document).ready(function () {<br>
<br>
//创建控件开始<br>
var property =<br>
{<br>
id: "demo",<br>
name: "demo",<br>
type: "filter",<br>
readOnly: false,<br>
width: 160,<br>
selectHeight: 140,<br>
autoLoad: true,<br>
haveIcon: false,<br>
text: "可输入员工姓名查找"<br>
}<br>
var combo = $.createGooCombo(document.getElementById("combo"), property);<br>
combo.loadListData(datas);<br>
//创建控件结束<br>
})<br>
<br>
<span style="color:#FF0000">datas是由ashx一般处理文件生成二维数组的json字符串 var datas=[" jsonString "]</span><br>
<pre name="code" class="vb"> </pre><pre name="code" class="csharp"> public string CreateJsonParameters(DataTable dt)
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
if (dt != null)
{
for (int i = 0; i < dt.Rows.Count -1; i )
{
if (i < dt.Rows.Count - 1)
{
sb.Append("[" dt.Rows[i]["EmployeeID"].ToString() ", " dt.Rows[i]["EmployeeNameID"].ToString() "],");
}
else if (i == dt.Rows.Count - 1)
{
sb.Append("[" dt.Rows[i]["EmployeeID"].ToString() "," dt.Rows[i]["EmployeeNameID"].ToString() "],");
}
}
}
return sb.ToString().TrimEnd(",".ToCharArray());
}</pre><br>
<br>
<br>
<br>
<pre></pre>
<pre></pre>
<pre></pre>
<pre></pre>
<pre></pre>
<pre></pre>
<pre></pre>
<pre></pre>
<pre></pre>
</pre></pre></pre>
以上就是小编为大家带来的可输入文字查找ajax下拉框控件 ComBox的实现方法全部内容了，希望大家多多支持Devmax~